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PICList Thread
'Voice Synthesis'
1997\02\08@194025 by Tim Kerby

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Hi
I need a ***cheap*** voice synthesiser that operates on a minimum of lines
and gives decent results (clear for small children to hear).  Command set
should be low so as to reduce PIC code needed.  Cheap is very important.  I
am willing to use a C84 as a dedicated controller if necessary.

Any info?

Thanks

Tim


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1997\02\08@203143 by John Payson

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> I need a ***cheap*** voice synthesiser that operates on a minimum of lines
> and gives decent results (clear for small children to hear).  Command set
> should be low so as to reduce PIC code needed.  Cheap is very important.  I
> am willing to use a C84 as a dedicated controller if necessary.

Radio Shack has some chips from Information Storage Devices that may fit the
bill.  About $12-$20 for the ability to store 10-90 seconds of audio.

1997\02\08@203351 by hoss karoly

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Tim Kerby wrote:
>
> Hi
> I need a ***cheap*** voice synthesiser that operates on a minimum of lines
> and gives decent results (clear for small children to hear).  Command set
> should be low so as to reduce PIC code needed.  Cheap is very important.  I
> am willing to use a C84 as a dedicated controller if necessary.
>
> Any info?
>
> Thanks
>
> Tim
>

isd is the right answer . I'm just experimenting with an isd module
which let you play messages by number drive it via one serial line
and about 20% bigger than the isd chip itself :)

bye
charley

1997\02\08@211128 by Bill Merson

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If you want to "record" your own voice or messages, I agree the ISD device is
the way to go. I am using the 60 sec. version, with a 4 line address and 2
command lines to play 10  seven second audio messages as required.
Bill Merson
spam_OUTMersonbillTakeThisOuTspamaol.com

1997\02\09@055435 by Tim Kerby

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I need about 100 words which can be made into sentences.  Originally I
considered the General Instruments (The PIC inventor) chip, the SPO256-AL2
but this is no longer available.  It worked on the basis of phoenemes which
were combined and filtered in a vocal tract like way.  I think phillips do
a chip the 8200 which is similar and works on an I2C bus.  Something with a
vocabulary or phoeneme system is better for me to produce all the words I
need.  I am not sure if phillips still do the 8200.  If you know of a
similar device then I would apreciate any info.


Thanks

Tim


At 21:10 08/02/97 -0500, you wrote:
>If you want to "record" your own voice or messages, I agree the ISD device is
>the way to go. I am using the 60 sec. version, with a 4 line address and 2
>command lines to play 10  seven second audio messages as required.
>Bill Merson
>.....MersonbillKILLspamspam@spam@aol.com
>


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If you can read this, it is the end of the message!
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My PIC site is at web.ukonline.co.uk/members/tim.kerby/pic/
It needs your projects!
------------------------------------------------------------------

1997\02\09@113657 by craig r. autio

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At 04:17 PM 2/8/97 +0000, you wrote:
>Hi
>I need a ***cheap*** voice synthesiser that operates on a minimum of lines
>and gives decent results (clear for small children to hear).  Command set
>should be low so as to reduce PIC code needed.  Cheap is very important.  I
>am willing to use a C84 as a dedicated controller if necessary.
>
>Any info?
>
>Thanks
>
>Tim

Tim,

I have been using the ISD2500 series which is a true record and playback
chip.  The 90 or 120 second chip is not cheap; $7.25 at 10K quantities.  I
did not price the 10, 14, 20 second chips so I cannot comment about the
price.  ISD is the chip that has been put into the electronic "memo" pads.
I think Radio Shack sells a voice board which include this chip if you want
to play around.  ISD has a data book with application notes.  It does
require up to 10 address lines depending on the chip.  You can reduce it to
a few if you want to add a serial shift register.

Craig
*******************************
*       Craig R. Autio        *
* cautiospamKILLspamequinox.shaysnet.com *
*******************************

1997\02\09@113822 by Don L. Jackson

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At 10:55 AM 2/9/97 +0000, you wrote:
>I need about 100 words which can be made into sentences.  Originally I
>considered the General Instruments (The PIC inventor) chip, the SPO256-AL2
>but this is no longer available.  It worked on the basis of phoenemes which
>were combined and filtered in a vocal tract like way.  I think phillips do

Tim,

The SP0256 chip is still available in "surplus" channels if you do not need
a continual supply for production purposes.  One source in the U.S. is B G
Micro in Dallas, TX.  http://www.bgmicro.com or email .....bgmicroKILLspamspam.....bgmicro.com

Latest listed cost is US$ 4.95 each.  I have dealt with this company over
many years and they are very reliable.

Don L. Jackson / Gilbert, Arizona
Azark Consulting Group

1997\02\09@124512 by kotay

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>
> I need about 100 words which can be made into sentences.  Originally I
> considered the General Instruments (The PIC inventor) chip, the SPO256-AL2
> but this is no longer available.  It worked on the basis of phoenemes which
> were combined and filtered in a vocal tract like way.  I think phillips do
> a chip the 8200 which is similar and works on an I2C bus.  Something with a
> vocabulary or phoeneme system is better for me to produce all the words I
> need.  I am not sure if phillips still do the 8200.  If you know of a
> similar device then I would apreciate any info.
>
>
> Thanks
>
> Tim
>
My Jameco catalog has the Digitalker chipset by National Semiconductor
(discontinued).  The chipset consists of four chips (requires a fair
amount of PCB space) and has 137 words.  You can also get more ROMs to
increase the vocabulary.  The cost:

Part#   Product#        Description                     Price
--------------------------------------------------------------
16491   DT1050          Digitalker (4 chips)            $29.95
16504   DT1057          Vocabulary expansion (3 chips)  $19.95

Keith

Keith D. Kotay
EraseMEkotayspam_OUTspamTakeThisOuTcs.dartmouth.edu
http://www.cs.dartmouth.edu/~kotay

1997\02\09@124515 by Leon Heller

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In message <3.0.16.19970208161734.4d97911espamspam_OUTpop-3.ukonline.co.uk>, Tim
Kerby <@spam@tim.kerbyKILLspamspamUKONLINE.CO.UK> writes
>Hi
>I need a ***cheap*** voice synthesiser that operates on a minimum of lines
>and gives decent results (clear for small children to hear).  Command set
>should be low so as to reduce PIC code needed.  Cheap is very important.  I
>am willing to use a C84 as a dedicated controller if necessary.

What sort of synthesiser? There are basically two types. One uses
allophones, where each word is built up from about 40 basic sounds.
These require very little storage, but the speech quality is rather
poor. The other type plays back pre-recorded speech which has been
compressed, and usually gives excellent speech quality. Also, how much
speech do you want?

If you want to replay lots of pre-recorded words and phrases the OKI
chips are cheap, and the quality is very good. We have used them where I
work. They use an external EPROM and are quite easy to interface to a
controller (we use an HC11). I think there are newer ones with on-chip
storage. Unfortunately, the development system you need to compress the
recorded speech and program the EPROM is quite expensive - our
distributor loaned us the kit, even though we only used a couple of the
chips in a prototype. I was only peripherally involved with this (I
defined the speech warning messages and did the recording and editing),
so I can't help much.

You might be able to find one of the General Instrument SP-025 (it was
something like that) chips. I used one of these many years ago with the
TRS-80. It was allophone-based and very easy to interface and use, but
the quality wasn't very good.

If you only want a few words or phrases, look at the ISD devices. The
ISD1016 gives 20 s total recording time, and costs about #13 (UK).

Leon
--
Leon Heller, G1HSM
KILLspamleonKILLspamspamlfheller.demon.co.uk
Tel: +44 (0) 118 947 1424 (home)
    +44 (0) 1344 385556 (work)

1997\02\10@151020 by John Magrane

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Tim Kerby wrote:
{Quote hidden}


'Voice Synthesis'
1997\03\31@054856 by John Holman
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hi mat its me pete  i am geting better at hand writing by love from
pete

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